As Amended: September 5, 2003

Board Hearing: December 12, 2002

State of California

AIR RESOURCES BOARD

CALIFORNIA REFUELING EMISSION STANDARDS AND TEST PROCEDURES

FOR 2001 AND SUBSEQUENT MODEL MOTOR VEHICLES

Adopted: August 5, 1999

 Amended: September 5, 2003

Note: Amendments to this document are shown in underline to indicate additions and

strikeout to indicate deletions compared to the test procedures adopted August 5, 1999.
As Amended: September 5, 2003

Board Hearing: December 12, 2002

CALIFORNIA REFUELING EMISSION STANDARDS AND TEST PROCEDURES

FOR 2001 AND SUBSEQUENT MODEL MOTOR VEHICLES

The provisions of Title 40, Code of Federal Regulations (CFR), Part 86, Subparts B

(as adopted or amended by the U.S. Environmental Protection Agency (U.S. EPA) on the

date listed) and S (as adopted on May 4, 1999, or as last amended on such other date set

forth next to the 40 CFR Part 86 section title listed below) to the extent they pertain to the

testing and compliance of vehicle refueling emissions for passenger cars, light-duty trucks

and medium-duty vehicles, are hereby adopted as the “California Refueling Emission

Standards and Test Procedures for 2001 and Subsequent Model Motor Vehicles” with the

following exceptions and additions. 

Subpart S Requirements

I. General Certification Requirements for Refueling Emissions

A. Applicability

1. These refueling standards and test procedures are applicable to all new

2001 and subsequent model gasoline-fueled, alcohol-fueled, diesel-fueled, liquefied

petroleum gas-fueled, natural gas-fueled, and hybrid electric passenger cars, light-duty

trucks and medium-duty vehicles with a gross vehicle weight rating of less than 8,501 lbs. 

Gaseous fueled vehicles are exempt from meeting these refueling standards. In cases

where a provision applies only to a certain vehicle group based on its model year, vehicle

class, motor fuel, engine type, or other distinguishing characteristics, the limited

applicability is cited in the appropriate section or paragraph. 

2. For general certification purposes, the requirements set forth in the

”California Exhaust Emission Standards and Test Procedures for 2001 and Subsequent

Model Passenger Cars, Light-Duty Trucks and Medium-Duty Vehicles” shall apply, except

as otherwise noted in these test procedures.

3. Reference to vehicle sales throughout the United States shall mean vehicle

sales in California, except when certifying to the refueling standards, in which case, vehicle

sales shall mean throughout the United States.

4. A small volume manufacturer is defined as any vehicle manufacturer with

California actual sales less than or equal to 4500 new vehicles per model year based on

the average number of vehicles sold by the manufacturer in the previous three consecutive

years.
As Amended: September 5, 2003

Board Hearing: December 12, 2002 2

5. Regulations concerning U.S. EPA hearings, inspections, specific language

on the Certificate of Conformity, alternative useful life, and selective enforcement audit shall

not be applicable to these procedures, except where specifically noted. 

6. In those instances where testing conditions or parameters are not practical

or feasible for vehicles certified to the refueling standards, the manufacturer shall provide a

test plan that provides equal or greater confidence in comparison to these test refueling

procedures. The test plan must be approved in advance by the Executive Officer. 

7. The term “[no change]” means that these test procedures do not modify the

applicable federal requirement.

8. The specifications for the fuel used in testing are set forth in 40 CFR

§86.113-94 (February 18, 2000). California certification fuel is not allowed for certification

or in-use testing.

B. Definitions, Acronyms

These test procedures incorporate by reference the definitions set forth in the Code

of Federal Regulations and the definitions as set forth in the “California Exhaust Emission

Standards and Test Procedures for 2001 and Subsequent Model Passenger Cars, LightDuty Trucks and Medium-Duty Vehicles.” 

C. Useful Life

1. Delete §86.1805-01; §86.1805-04 and replace with: 

“Useful life” shall have the same meaning as provided in Title 13, CCR, §2112. 

D. On-Board Diagnostics

1. Delete §86.1806 and replace with: 

The “Malfunction and Diagnostic System Requirements for 1994 and Subsequent

Model-Year Passenger Cars, Light-Duty Trucks and Medium-Duty Vehicles and Engines”

as set forth in Title 13, CCR, Section 19681 et seq, as applicable, is hereby incorporated

by reference into this test procedure. For purposes of this test procedure, all references to

evaporative system monitoring, malfunction criteria, and MIL illumination and fault code

storage shall also apply to refueling systems. 
As Amended: September 5, 2003

Board Hearing: December 12, 2002 3

E. General Standards, increase in emissions; unsafe conditions;

waivers

1. Amend §§86.1810-01 and 86.1810-04 (July 12, 2001) as follows:

1.1 (a) through (j). [See the “California Exhaust Emission Standards and

Test Procedures for 2001 and Subsequent Model Passenger Cars, Light-Duty Trucks and

Medium-Duty Vehicles” or the “California Evaporative Emission Standards and Test

Procedures for 2001 and Subsequent Model Motor Vehicles.”]

1.2 (k) through (n) [No change.]

1.3 (o) and (p) [n/a]

1.4 A manufacturer shall also demonstrate compliance with the fuel

spillage test requirements contained in Title 13, California Code of Regulations, §2235,

Specifications for Fill Pipes and Openings of Motor Vehicle Fuel Tanks, as last amended

January 22, 1990, incorporated by reference herein.

2. In addition to the provisions set forth in these test procedures, the ARB

reserves the authority to require testing to enforce compliance and to prevent

noncompliance with the refueling emission standard. 

3. Vehicles certified to the refueling emission standards set forth in Section

F.2.2 below, shall not be counted in the phase-in sales percentage compliance

determinations.

F. Emission Standards

1. Delete 40 CFR §§86.1811 through 86.1815 (all years).

2. The maximum refueling emissions for 2001 and subsequent model gasolinefueled, alcohol-fueled, diesel-fueled, fuel-flexible, and hybrid electric passenger cars, lightduty trucks and medium-duty vehicles with a gross vehicle weight rating less than 8,501 lbs.

for the full useful life are: 

2.1 For gasoline-fueled, alcohol-fueled, diesel-fueled, fuel-flexible, and

hybrid electric vehicles: 0.20 grams hydrocarbons per gallon of fuel dispensed. [For

purposes of these test procedures, hydrocarbons shall mean organic material hydrocarbon

equivalent for alcohol-fueled vehicles.] For liquefied petroleum gas-fueled vehicles: 0.15

gram hydrocarbons per gallon of fuel dispensed.

2.2 Vehicles powered by diesel fuel are not required to conduct testing to

demonstrate compliance with the refueling emission standards set forth above, provided

that all of the following provisions are met:

(A) The manufacturer can attest to the following evaluation: “Due to the

low vapor pressure of diesel fuel and the vehicle tank temperatures,

hydrocarbon vapor concentrations are low and the vehicle meets the 0.20

grams/gallon refueling emission standard without a control system.”
As Amended: September 5, 2003

Board Hearing: December 12, 2002 4

(B) The certification requirement described in paragraph 2.2.(A) is

provided in writing and applies for the full useful life of the vehicle.

G. Durability Demonstration procedures for refueling emissions. 

[No change from 40 CFR §1825-01 (October 6, 2000). 
As Amended: September 5, 2003

Board Hearing: December 12, 2002 5

Subpart B - Emission Regulations for 1977 and Later Model Year New Light-Duty

Vehicles and New Light-Duty Trucks; Test Procedures

40 CFR §§ 86.101 through 86.145 and Appendix I (UDDS Schedule) of this Subpart B, as

incorporated by reference and amended in the “California Exhaust Emission Standards

and Test Procedures for 2001 and Subsequent Model Passenger Cars, Light-Duty Trucks

and Medium-Duty Vehicles,” are hereby incorporated by reference herein.

Refueling Test Procedures

86.146-96 Fuel dispensing spitback procedure. March 24, 1993. August 23, 1995.

86.150-98 Overview, refueling test. April 6, 1994 September 21, 1994.

86.151-98 General requirements; refueling test. April 6, 1994. 

86.152-98 Vehicle preparation; refueling test. April 6, 1994 August 23, 1995.

86.153-98 Vehicle and canister preconditioning; refueling test. April 6, 1994 August 23,

1995.

86.154-98 Measure procedure; refueling test. April 6, 1994 August 23, 1995.

86.155-98 Records required; refueling test. April 6, 1994.

86.156-98 Calculations. April 6, 1994.